linux-kernel - Re: Chroot bug

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Message-ID: <20070925093320.51505c79@laptopd505.fenrus.org>
Date:	Tue, 25 Sep 2007 09:33:20 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	David Newall <david@...idnewall.com>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	"Serge E. Hallyn" <serge@...lyn.com>,
	Bill Davidsen <davidsen@....com>,
	Philipp Marek <philipp@...ek.priv.at>, 7eggert@....de,
	majkls <majkls@...pere.com>, bunk@...tum.de,
	linux-kernel@...r.kernel.org
Subject: Re: Chroot bug

On Wed, 26 Sep 2007 01:05:07 +0930
David Newall <david@...idnewall.com> wrote:

> Alan Cox wrote:
> >> Marek's loading dynamic libraries, it seems clear that the prime
> >> purpose of chroot is to aid security.  Being able to cd your way
> >> out is handy 
> >
> > Does it - I can't find any evidence for that.
> 
> It seems self-evident to me.  What do you think is it prime purpose?
> 
> 

the prime purpose is that you can have different sets of userspace libs
for testing or parallel deployment (for example this is used in many
distribution build systems)
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